Open the WiFi settings on almost any router sold in the last few years and you will find two or three radio bands: 2.4 GHz, 5 GHz and, on newer gear, 6 GHz. They are not three speeds of the same thing. Each band trades range for speed in a different way, and putting the right device on the right band is one of the cheapest fixes for slow or patchy WiFi.
The short answer: use 5 GHz for anything that needs speed and sits within a room or two of the router — laptops, TVs, consoles, phones. Use 2.4 GHz for range and for smart-home gadgets that only support it. Use 6 GHz if both your router and your device support WiFi 6E or WiFi 7 and they are close together. Most of the time, the best setup is to let the router decide — and to step in only for the devices that end up on the wrong band.
The three WiFi bands at a glance
| 2.4 GHz | 5 GHz | 6 GHz | |
|---|---|---|---|
| Range | Longest; best through walls and floors | Medium; drops off after a wall or two | Shortest; best in the same room or next room |
| Speed | Lowest — often under 100 Mbps in a real home | High — several hundred Mbps is common up close | Highest, with the widest channels |
| Congestion | Heavy — only 3 non-overlapping channels | Moderate — many more channels | Very low — few devices use it yet |
| Interference | Microwaves, Bluetooth, baby monitors, neighbours | Mostly neighbouring WiFi; some channels share with radar | Minimal |
| Device support | Almost everything, including most smart plugs and cameras | Nearly all phones, laptops, TVs and consoles from the last decade | WiFi 6E and WiFi 7 devices only |
2.4 GHz: the long-range workhorse
Lower-frequency radio waves pass through drywall, floors and furniture more easily, so 2.4 GHz reaches the far bedroom, the basement suite and the garage when 5 GHz gives up. That is its big strength.
The trade-off is space. In North America the 2.4 GHz band has 11 channels, but they overlap, which leaves only three that don’t interfere with each other: 1, 6 and 11. In a condo tower or a dense Calgary or Vancouver neighbourhood you might see twenty networks fighting over those three channels. The band is also shared with microwave ovens, Bluetooth, older cordless phones and many baby monitors. The result is slower, less consistent speeds — fine for a smart plug or an e-reader, frustrating for a video call.
2.4 GHz is still essential, though. The majority of budget smart plugs, bulbs, doorbells and outdoor cameras connect only on 2.4 GHz, because it reaches further and the radio chips are cheaper. Turning it off breaks them. Our smart home WiFi guide covers how to keep dozens of these gadgets running smoothly.
5 GHz: where most of your speed lives
5 GHz offers far more channels and much wider ones. A 2.4 GHz channel is normally 20 MHz wide; on 5 GHz, routers routinely use 80 MHz channels and can go to 160 MHz. Wider channels carry more data, which is why a laptop a room away from the router can often pull several hundred megabits per second on 5 GHz but a fraction of that on 2.4 GHz.
Range is the catch. 5 GHz signals weaken faster through walls, so the band that is blazing in the living room may be weak two floors down. That is where better router placement or a mesh system pays off: instead of stretching one router’s 5 GHz signal across the house, you bring a node closer to the devices.
One quirk worth knowing: some 5 GHz channels (often called DFS channels) are shared with weather and other radar. A router using them must listen for radar and switch channels if it hears any, which can cause a brief drop. If you notice short, random disconnects on 5 GHz, setting the router to a non-DFS channel is a quick test.
6 GHz: the new, uncrowded lane
In May 2021, Innovation, Science and Economic Development Canada opened the full 1,200 MHz of the 6 GHz band (5925–7125 MHz) to licence-exempt use (ISED decision SMSE-006-21). That is more new WiFi spectrum than 2.4 GHz and 5 GHz combined, and WiFi 6E and WiFi 7 devices can use it.
Because only newer devices can join, 6 GHz is quiet — no older laptops, no smart plugs, no neighbour’s 2015 router. It supports the widest channels of all (up to 320 MHz with WiFi 7), so a 6E or 7 laptop next to a 6E or 7 router can get excellent speeds with very low interference.
The limits are real, though:
- Both ends need it. Your router and your device have to support WiFi 6E or 7. Many phones and laptops from the last few years do; most TVs, consoles and streaming sticks don’t yet.
- Short range. 6 GHz has the shortest reach of the three bands, and home routers use it at low power indoors. Think same room or next room.
- It can’t beat your plan. 6 GHz makes the link between the device and router faster. It does not make your internet connection faster than the speed you pay for.
For the full rundown on standards, see WiFi 6, 6E and 7 explained.
One network name or separate ones?
Most current routers and mesh systems broadcast all their bands under one network name and use band steering (also called Smart Connect) to push each device to the band that suits it. For most homes this is the right setting: devices move to 5 GHz when they are close and fall back to 2.4 GHz at the edges, without you doing anything.
Separate names (for example Home-2.4 and Home-5) make sense in two situations:
- Setting up a 2.4 GHz-only gadget. Some smart plugs and cameras fail to pair when the phone doing the setup is on 5 GHz. A temporary 2.4 GHz-only network, or briefly disabling 5 GHz during setup, usually solves it.
- A device that keeps choosing the wrong band. If a TV in the next room sticks to 2.4 GHz and buffers, pinning it to the 5 GHz name fixes it.
If you split the bands, keep the same strong password and WPA2/WPA3 security on both. Our WiFi security guide walks through the settings.
Which band for which device?
| Device | Best band | Why |
|---|---|---|
| Laptop or desktop for work and video calls | 5 GHz (6 GHz if supported) | Speed and steady latency; consider Ethernet for a desk that never moves |
| Smart TV, streaming stick, game console | 5 GHz | 4K streaming and game downloads need throughput |
| Phone and tablet | Let band steering decide | They move around the house |
| Smart plugs, bulbs, thermostats, sensors | 2.4 GHz | Often the only band they support; they need range, not speed |
| Outdoor and garage cameras, doorbells | 2.4 GHz (or a mesh node nearby) | Range through exterior walls |
| New WiFi 6E/7 laptop near the router | 6 GHz | Least congestion, widest channels |
For anything stationary and important — a work desk, a gaming PC — a cable still beats every band. See Ethernet vs WiFi for a home office.
How to check which band a device is using
- Windows: open Settings → Network & internet → WiFi → your network’s properties and look for “Network band,” or run
netsh wlan show interfacesin Command Prompt and check “Band” and “Channel.” - Mac: hold the Option key and click the WiFi icon in the menu bar. The “Channel” line shows the band (2.4, 5 or 6 GHz).
- Android: tap the connected network in WiFi settings; many phones show the frequency or band.
- iPhone: iOS doesn’t show it directly. Check your router or mesh app instead — most list each device with its band.
- Router app or admin page: the connected-device list usually shows the band for every client. Our guide on seeing what’s connected to your WiFi shows where to find it.
Then run a speed test on that device in the spot where you normally use it (how to test properly). A big gap between the test result and your plan speed, with the device on 2.4 GHz, is the classic sign that it is on the wrong band or too far from the router.
Rural homes, acreages and big houses
On an acreage outside Edmonton or Saskatoon, or a long bungalow in the Okanagan, the bands behave differently than in a condo. Congestion matters less because there are few neighbouring networks, and range matters more. 2.4 GHz is often what reaches the shop, the barn or the far end of the yard, while 5 GHz covers the main living space. Rather than pushing one router harder, add mesh nodes or a point-to-point link; our outdoor and acreage WiFi guide covers the options.
When the band isn’t the problem
If every device is slow on every band, look upstream. The issue may be the plan itself, the modem, or the connection coming into the house. Start with our slow internet troubleshooting guide, then compare what you are paying for with what you need on our rates page. Get WiFi offers fibre and cable plans across Alberta, BC and Saskatchewan, including Calgary, Edmonton, Saskatoon and Kelowna.
Frequently Asked Questions
Is 5 GHz WiFi better than 2.4 GHz?
For speed, yes: 5 GHz has more and wider channels and less interference, so devices near the router usually get much faster, steadier connections. 2.4 GHz is better for range and for smart-home devices that only support it. Most homes should keep both on and let the router steer devices.
Why can't my smart plug connect to my WiFi?
Most budget smart plugs, bulbs and cameras only support 2.4 GHz. If your router combines bands under one name, pairing can fail while your phone is on 5 GHz. Try setting up a temporary 2.4 GHz-only network, or briefly disabling 5 GHz while you pair the device.
Should I turn off 2.4 GHz?
Usually not. Many smart-home devices, cameras and older gadgets need it, and it reaches rooms that 5 GHz and 6 GHz cannot. If 2.4 GHz is causing trouble, it is better to pin your fast devices to 5 GHz than to switch 2.4 GHz off.
Do I need a new router to use 6 GHz WiFi?
Yes. Both the router and the device must support WiFi 6E or WiFi 7. Canada opened the 6 GHz band for WiFi in May 2021, so many phones and laptops from the last few years support it, but most TVs and streaming devices do not yet.
Will switching WiFi bands make my internet plan faster?
No. The band only changes the speed of the link between your device and the router. It can help you get closer to the speed you already pay for, but it cannot exceed your plan's speed.
Get the Speed Your WiFi Can Actually Use
Good band settings get the most out of your connection, but they can’t fix an underpowered plan. Compare fibre and cable options on our rates page, see bundles, or sign up online in a few minutes. More how-tos are in our Internet Guides hub.
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